"I have little use for the past and rarely think about it; however, I would briefly like to tell you how I came to be a spiritual teacher and how this book came into existence. Until my thirtieth year, I lived in a state of almost continuous anxiety interspersed with periods of suicidal depression. It feels now as if I am talking about some past lifetime or somebody else's life.... What was the point in continuing to live with this burden of misery? Why carry on with this continuous struggle? I could feel that a deep longing for annihilation, for nonexistence, was now becoming much stronger than the instinctive desire to continue to live. “I cannot live with myself any longer.” This was the thought that kept repeating itself in my mind. Then suddenly I became aware of what a peculiar thought it was. “Am I one or two? If I cannot live with myself, there must be two of me: the ‘I’ and the ‘self’ that ‘I’ cannot live with.” “Maybe,” I thought, “only one of them is real.” When someone goes to the doctor and says, "I hear a voice in my head," he or she will most likely be sent to a psychiatrist. The fact is that, in a very similar way, virtually everyone hears a voice, or several voices, in their head all the time: the involuntary thought processes that you don't realize you have the power to stop. Introduction"